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Grasscity Forums - The #1 Marijuana Community Online
Forums
Growing Marijuana
Grow Room Design/Setup
Lighting
Discussions on lighting and what lights are best to use for your grow.
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How Light is Measured & Lighting Spectrum and Photosythesis
jcj77d
,
Nov 1, 2009
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3
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5
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99
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Infinityjumper
Mar 6, 2022
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All About Lighting
jcj77d
,
Aug 24, 2008
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The Dawg
Nov 30, 2021
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Can a Mars Hydro SP 3000 squash Godzilla and flatten Tokyo?
The Bag Boy
,
Mar 7, 2022
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The Bag Boy
May 22, 2022 at 11:01 AM
The End of the Tunnel
The Bag Boy
,
Apr 10, 2012
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135
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137
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The Bag Boy
May 21, 2022 at 10:27 PM
Maxsisun MF2000 ... Good Light?
MarsColonist
,
May 20, 2022 at 9:28 PM
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0
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134
MarsColonist
May 20, 2022 at 9:28 PM
UV light for chloramine removal?
cinnamonbun
,
May 19, 2022 at 3:25 AM
Replies:
9
Views:
296
Weedweasle
May 19, 2022 at 8:17 PM
Need advice for "grow closet"
zeekoslav
,
May 11, 2022
Replies:
7
Views:
333
Psyclops1409
May 14, 2022
More light needed?
Colonangelr
,
May 12, 2022
Replies:
2
Views:
336
MJSeedsCanada
May 12, 2022
HLG-240H-54A for 4 QB132 Lights?
ohio1121
,
May 11, 2022
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1
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223
trojangrower
May 11, 2022
King brite lm301h
Jsaunders
,
Apr 25, 2022
Replies:
2
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150
Jsaunders
May 9, 2022
New Quantum board qb96 V2's are out from HLG. Cob replacement fixture-Replacement Thread **BS here**
Or_Gro
,
Oct 12, 2018
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159
160
161
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134,149
Wandrew640
May 3, 2022
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3
Invisible sun led grow!!!!!!
Popcorn
,
Dec 19, 2020
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121
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7,554
Popcorn
Apr 29, 2022
Has anyone ever had a hardware issue with the Mars TSL 2000?
cinnamonbun
,
Apr 26, 2022
Replies:
0
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89
cinnamonbun
Apr 26, 2022
My Amare & Hydroponics Hut - O.C., GG#4 Grow
Hybridway
,
Mar 4, 2016
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22
23
24
Replies:
474
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29,417
Weed Dude
Apr 25, 2022
Nuke head lights
Jsaunders
,
Apr 23, 2022
Replies:
5
Views:
150
Jsaunders
Apr 23, 2022
Qb boards - place to get
Jsaunders
,
Apr 21, 2022
Replies:
8
Views:
184
JMcGD
Apr 22, 2022
Electric bike battery charger as LED driver?
D123W
,
Oct 4, 2017
Replies:
6
Views:
950
Goblin_smasher
Apr 19, 2022
Do I need a reflector hood for an HPS grow light if I install it in a tent?
cinnamonbun
,
Apr 19, 2022
Replies:
7
Views:
141
hatmat
Apr 19, 2022
Can someone tell me more about 'LightEnerG'
cinnamonbun
,
Apr 19, 2022
Replies:
0
Views:
92
cinnamonbun
Apr 19, 2022
What kind of LED Lights should I get?
cozyboytro
,
Apr 13, 2022
Replies:
7
Views:
282
Oldtimer58
Apr 14, 2022
Bar LEDs for 3x3
lilmink
,
Apr 14, 2022
Replies:
5
Views:
172
lilmink
Apr 14, 2022
How many watts led for 4x4 tent?
bonzo78
,
Mar 23, 2022
Replies:
12
Views:
389
GroBuddy
Apr 9, 2022
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Grasscity Forums - The #1 Marijuana Community Online
Forums
Growing Marijuana
Grow Room Design/Setup
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Grasscity Forums - The #1 Marijuana Community Online
Forums
Growing Marijuana
Grow Room Design/Setup